1.Molecular Cloning and Sequence Analysis of Rab11 GTPase in Trichomonas vaginalis
Renli ZHANG ; Mingyan XU ; Jingjie XU ; Shitong GAO ; Dana HUANG ; Yijie GEN ; Yucai FU
Journal of Tropical Medicine 2006;6(3):267-270,283
Objective Rab11 GTPases play an essential role in regulating membrane trafficking pathways in eukaryotic cells. Nonetheless, there has been little work done on characterizing the transport machinery of Trichomonas. The aim of this study is to clone and characterize a Rab11 gene of Trichomonas vaginalis.Methods A cDNA expression library was constructed with T. vaginalis total RNA. A cDNA clone, which showed a high degree of homology with Rab proteins of different species, was isolated and sequenced. Sequence analysis was performed using BLASTP, RPS-BLAST and ClustalW programs. The genomic DNA corresponding to the cDNA sequence was amplified using PCR techniques and following by sequencing. Results cDNA with a length of 710 base pairs and an open reading frame of 636 bp was obtained. The deduced amino acid sequence from the open reading frame was found to possess 211 residuals. Sequence analysis demonstrated that this cDNA clone was homologous to the Rab11 subfamily of different species (60% identity and 79% similarity with Arabidopsis thaliana Rab11c, 58% identity and 78% similarity with human Rab11b), and that the amino acid sequence contains all the well known conserved sequence elements of Rab family. Specific Rab motifs were also detected in the deduced amino acid sequence. Phylogenetic analysis showed that its closest homologues are Rab11 proteins from other species. Sequencing of the PCR product of genomic DNA revealed that the genomic DNA sequence encompassing the putative 5'-ATG and 3'-stop codon is identical to the cDNA sequence.Conclusion A cDNA clone corresponding to the T. vaginalis Rab11 gene was obtained.The function of this gene in regulating membrane trafficking pathways of the parasitic protist is still under investigation.
2.Operational options and outcomes evaluation in cicatricial alopecia
Wei ZHANG ; Fu HAN ; Peng JI ; Xiaolong HU ; Bin ZHAO ; Yijie ZHANG ; Xiaozhi BAI ; Linlin SU ; Huibin LEI ; Dahai HU
Journal of Chinese Physician 2017;19(5):650-652,655
Objective To summarize the operational experience and explore the best surgery strategy in cicatricial alopecia.Methods Clinical date of 80 cases of cicatricial alopecia during January 2012 to December 2016 were analyzed retrospectively.The operation methods and related adverse events were recorded.Patients were followed-up on the postoperative 1 week,1 month,3 months,6 months and 1-2 years.The outcomes were evaluated by a 4-levels questionnaire:very satisfied,satisfied,not satisfied,and no effect.Results Forty cases were operated with expanded skin flap + Follicular unit extraction (FUE) transplantation,10 cases with scar resection + FUE repair,and 30 cases only with FUE.Twenty cases were completed treatment with single-stage surgical operation,and 60 cases with two-stage surgical operation.A percentage (70%) of patients was very satisfied and 30% were satisfied after one-stage surgical operation.A percentage (85%) of patients was very satisfied and 15% were satisfied after two-stage surgical operation.Conclusions The cicatricial alopecia needs comprehensive surgical treatment.FUE is a best additional operation technology.The effect of combined treatment is better than single therapy method in large area cicatricial alopecia.
3.Preparation and preliminary research on the characteristics of modified nano-bioglass hydrogel
Lichun WEI ; Yijie ZHANG ; Sha HUANG ; Bin YAO ; Xiang LI ; Xuyuan CHEN ; Yan LI ; Xiaobing FU ; Xu WU
Chinese Journal of Burns 2020;36(10):930-938
Objective:To explore the preparation and preliminary research on the characteristics of modified nano-bioglass hydrogel.Methods:(1) The nano-bioglass suspension was prepared by adding 67 mL nano-silica suspension into 400 mL saturated calcium hydroxide solution, and its suspension stability was observed. (2) The hydrogel with final mass fraction of 10% gelatin and 1% sodium alginate was prepared and set as control group. On the basis of the hydrogel in control group, the nano-bioglass suspension prepared in experiment (1) was added to prepare the hydrogel with the final mass fraction of 0.5% bioglass, 10% gelatin, and 1% sodium alginate, and the hydrogel was set as the experimental group. The gelling time at 4 and 25 ℃and the dissolution time at 37 ℃ of hydrogel in 2 groups were recorded, and the gelation at 4 and 25 ℃and dissolution condition at 37 ℃of the hydrogel in 2 groups were observed. The hydrogel in 2 groups were collected and cross-linked with 25 g/L calcium chloride solution after cold bath at 4 ℃, and the compression modulus was measured by Young′s modulus tester. In addition, the hydrogel in 2 groups were collected and cross-linked as before, and freeze-drying hydrogel was made at -20 ℃. The relative volumes were measured and the porosity of hydrogel in 2 groups was calculated. The number of sample in the experiment was 3. (3) Fibroblasts (Fbs) were isolated and cultured from 12 C57BL/6J mice of 24 hours old and the morphology was observed by inverted microscope, and the third passage of Fbs were cultured for the following experiment. Fbs were collected to make single cell suspension with the cell concentration of 1×10 5/mL. The single cell suspension was divided into experimental group and control group according the random number table (the same grouping method below), which were added with hydrogel in experimental group and control group prepared in experiment (2), respectively. At culture hour 12, 24, and 48, cells of 3 wells in each group were collected to detect the survival rate by cell counting kit 8 method. (4) The third passage Fbs were collected to prepare the single cell suspension with the cell concentration of (3.0~4.5)×10 7/mL, which was divided into experimental group and control group, with 1 tube in each group. The single cell suspension in 2 groups were added with green fluorescent probe DIO for staining and then added with 9 mL hydrogel in experimental group and control group prepared in experiment (2), respectively. The mixed solution of Fbs and hydrogel in 2 groups was cross-linked as before to make cell-loaded hydrogel. On culture day 3, the survival of cells in the hydrogel was observed by laser confocal microscope. The cell-loaded hydrogel was prepared as before and without added with green fluorescent probe DIO. On culture day 7, the adhesion and extension of cells in the hydrogel were observed by scanning electron microscope. (5) Twelve 6-week-old female BALB/c-nu nude mice were collected and divided into experimental group and control group, with 6 mice in each group. A round full-thickness skin defect wound with diameter of 1 cm was made on the back of each mouse. Immediately after injury, one cell-loaded hydrogel block in the experimental group and the control group prepared in experiment (4) was placed in the wound of each mouse in the experimental group and the control group, respectively. On post injury day (PID) 7 and 14, 3 nude mice in each group were sacrificed to collect the wound and wound margin tissue, which was stained with hematoxylin-eosin to observe the wound healing. Data were statistically analyzed with independent sample t test. Results:(1) The nano-bioglass particles could be uniformly dispersed in water and had good suspension stability. (2) The hydrogels of the 2 groups were molten at 37 ℃, and no precipitation of particle was observed. The dissolving time of the hydrogel in the experimental group and the control group at 37 ℃ was 5 and 10 min, respectively. The gelation time of the hydrogel in the experimental group and the control group at 25 ℃ was 30 and 180 min, respectively, and the gelation time of the 2 groups at 4 ℃ was 5 and 10 min, respectively. The compression modulus of hydrogel in the experimental group was (53±6) kPa, which was significantly higher than (23±6) kPa in the control group ( t=6.364, P<0.01). The porosity of the hydrogel in the experimental group was (86.1±2.1)%, which was similar to (88.2±4.4)% in the control group ( t=1.210, P>0.05). (3) The cells were in long fusiform, and the proportion of nuclei was high, which was accorded with the morphological characteristics of Fbs. At culture hour 12, 24, and 48, the survival rate of cells in the experimental group was (84±4)%, (89±4)%, and (130±10)%, which was similar to (89±5)%, (90±4)%, and (130±11)% in the control group, respectively ( t=1. 534, 0.611, 0.148, P>0.05). (4) On culture day 3, the cells in the two groups had complete morphology in the hydrogel, no nuclear lysis or disappearance were observed, the cytoplasm remained intact, and the fluorescence intensity of the cells in the experimental group was significantly stronger than that in the control group. On culture day 7, the cells in the experimental group and the control group adhered and stretched in the hydrogel, and the number of cells in the experimental group adhered to the hydrogel was significantly more than that in the control group. On PID 7, the wound area of the nude mice in the control group and the experimental group were reduced, the reduction area of mice in the experimental group was more obvious, and a large amount of inflammatory cells were seen in and around the wound in the 2 groups. On PID 14, the wound area of the nude mice in the control group was larger than that of the experimental group, and the number of inflammatory cells in and around the wound was significantly more than that in the experimental group. Conclusions:Nano-bioglass hydrogel possesses good physical, chemical, and biological properties, cell loading potential, and the ability to promote wound healing, which means it has a good potential in clinical application.
4.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
5.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
6.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
7.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
8.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
9.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+
10.Survival analysis of patients with diffuse large B-cell lymphoma after chemotherapy using Fuzheng Jiedu Formula and its mechanism of action on lymphocyte subsets
Xi LI ; Wenyi ZHOU ; Shiya ZHUANSUN ; Xinbei YUAN ; Yijie YANG ; Hua FU ; Wei SHEN ; Min XU ; Xinjin GAN ; Jiahui LU
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1603-1611
Objective To evaluate the survival of patients with diffuse large B-cell lymphoma(DLBCL)after chemotherapy using Fuzheng Jiedu Formula and to explore the intrinsic correlation between the lymphocyte subset level and the survival of patients with DLBCL.Methods A total of 234 patients with DLBCL who had completed chemotherapy and achieved complete or partial response in the Department of Hematology,Longhua Hospital Shanghai University of Traditional Chinese Medicine and Shanghai East Hospital,Tongji University from January 1,2013,to December 31,2023,were recruited.A cohort study design was adopted,with"whether to receive continuous Fuzheng Jiedu Formula treatment for≥6 months after chemotherapy"as the exposed factor.Patients meeting this exposed factor were divided into the traditional Chinese medicine(TCM)cohort,whereas those who did not meet this exposed factor were divided into the observation cohort.The 1-and 2-year progression-free survival(PFS)rate,overall survival(OS)rate,and duration of response(DOR)of the two cohorts were compared.The survival curves of PFS and OS of the two cohorts were drawn,and subgroup survival analysis was performed to determine factors affecting disease progression.The effect of Fuzheng Jiedu Formula on lymphocyte subset count level was observed.Results The study included 126 and 108 patients in the TCM and observation cohorts,respectively.Compared with the observation cohort,the 2-year PFS rate,2-year OS rate,and DOR were increased in the TCM cohort(P<0.05).The PFS in the TCM cohort was higher than that in the observation cohort[HR=0.542,95%CI(0.345-0.853),P<0.01].The result of subgroup analysis showed that PFS in the TCM cohort was higher than that in the observation cohort in the age≥60 years,AA stage Ⅲ-Ⅳ,CD4+